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Nasal cavity expansion balloon catheter

A balloon catheter, nasal cavity technology, applied in balloon catheters, catheters, dilators, etc., can solve problems such as low drug efficacy and slow fusion, and achieve the effects of enhancing compatibility, improving wettability, and improving antibacterial properties

Inactive Publication Date: 2021-01-01
浙江桐轩医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, drug-eluting balloon catheters have insufficient biocompatibility and drug delivery, resulting in slow fusion and low drug efficacy

Method used

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  • Nasal cavity expansion balloon catheter
  • Nasal cavity expansion balloon catheter
  • Nasal cavity expansion balloon catheter

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0055] In a preferred embodiment, the preparation method of polyethylene oxide of the present invention comprises the steps of: adding 0.15g (0.001mol ) 4-ethyl-2-methoxyphenol, 0.40g (0.1mol) three (tetramethylguanidinium) phosphorus oxide {[(Me2N)2C=N]3P=O}, 100mL toluene, nitrogen replacement, in At 100°C, slowly add 200g of ethylene oxide, react for 20h, and drain the solvent and unreacted monomer to obtain a polymer.

[0056] The weight-average molecular weight of polyethylene oxide measured by GPC was 220,000, and the molecular weight distribution was 1.10.

[0057] In the present invention, by adding polyvinylpyrrolidone and polyethylene oxide to the antibacterial coating, the hydrophilicity of the antibacterial coating can be effectively improved, and the wettability of the balloon surface can be improved. The polyvinylpyrrolidone structure contains a lactam group, which is easy to connect water molecules inside the network crosslinked structure, while the methine gro...

Embodiment 1

[0090] A nasal dilation balloon catheter is provided, comprising a fixed frame 1, characterized in that: both sides of the fixed frame 1 are fixedly connected with a balloon 2, and the middle part of the fixed frame 1 is provided with a catheter groove 3, and the fixed frame 1 is provided with a catheter groove 3. The left side of the bottom of the frame 1 is provided with a flushing pipe installation groove 4, the right side of the bottom of the fixed frame 1 is provided with a suction pipe installation groove 5, and the two sides of the conduit groove 3 are provided with an inflation pipe fixing groove 6;

[0091] The inner cavity of the conduit groove 3 is fixedly connected with a main conduit 7, the inner cavity of the flushing pipe installation groove 4 is fixedly connected with a flushing pipe 8, and the inner cavity of the suction pipe installation groove 5 is movably connected with a suction pipe 9 The two sides of the outer ring of the main conduit 7 are fixedly connec...

Embodiment 2

[0102] A nasal dilation balloon catheter is provided, comprising a fixed frame 1, characterized in that: both sides of the fixed frame 1 are fixedly connected with a balloon 2, and the middle part of the fixed frame 1 is provided with a catheter groove 3, and the fixed frame 1 is provided with a catheter groove 3. The left side of the bottom of the frame 1 is provided with a flushing pipe installation groove 4, the right side of the bottom of the fixed frame 1 is provided with a suction pipe installation groove 5, and the two sides of the conduit groove 3 are provided with an inflation pipe fixing groove 6;

[0103] The inner cavity of the conduit groove 3 is fixedly connected with a main conduit 7, the inner cavity of the flushing pipe installation groove 4 is fixedly connected with a flushing pipe 8, and the inner cavity of the suction pipe installation groove 5 is movably connected with a suction pipe 9 The two sides of the outer ring of the main conduit 7 are fixedly connec...

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Abstract

The invention discloses a nasal cavity expansion balloon catheter. The nasal cavity expansion balloon catheter comprises a fixing frame; balloons are fixedly connected to the two sides of the fixing frame; a main catheter body is fixedly connected to an inner cavity of a catheter groove; an aspirating tube is movably connected to an inner cavity of an aspirating tube mounting groove; inflation tubes are fixedly connected to the two sides of an outer ring of the main catheter body; a coupler is fixedly connected to the left side of the main catheter body; a connecting tube is fixedly connectedto one end of the left side of the aspirating tube; a developing ring is fixedly connected to the right side of the outer ring of the main catheter body; and a groove is formed in the position, located at the developing ring, of the outer ring of the main catheter body. The developing ring is fixed, so that the phenomenon that after the balloons enter the nasal cavity, the developing ring shakes or loosens, and consequently the developing ring slips off the catheter can be avoided, and the human body is protected; and nasal cavity supporting frames are movably connected to the exteriors of theballoons, and when the balloons are expanded, the nasal cavity supporting frames can be opened to provide enough implementation space for an operation, so that the success rate of the operation is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a nasal dilation balloon catheter. Background technique [0002] The mechanism of restenosis after percutaneous transluminal coronary angioplasty and stenting is mainly local overhealing response to balloon injury, including early vascular elastic recoil, late vascular negative remodeling and neointimal hyperplasia . Stent instead of simple balloon dilation can reduce restenosis from 40% to 50% to 20% to 30% after interventional therapy for coronary heart disease. The DES developed in recent years, after repeated clinical verification, can not only effectively inhibit the elastic retraction of the vessel wall after PCI, but also significantly inhibit the excessive proliferation of vascular smooth muscle cells and neointima, thereby significantly reducing the rate of restenosis after PCI. Created a new milestone in PCI technology. [0003] Use a special balloon catheter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61M29/04A61L29/08A61L29/10A61L29/16A61M3/02
CPCA61L29/085A61L29/106A61L29/16A61L2300/104A61L2300/404A61L2300/606A61M3/0279A61M25/0026A61M25/0045A61M25/10A61M29/02A61M2025/0046A61M2025/0056A61M2025/1075A61M2205/32A61M2210/0618A61M2210/005C08L71/02C08L5/08C08L39/06
Inventor 沈坤
Owner 浙江桐轩医疗科技有限公司
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